200ci What cam should I get? Bronco

[ActionYobbo]

Going to be starting to build a 200 for a bronco. 30 inch tires. 3.55 differential. C4 auto. I predict most of the engines use will be from idle to 3000 with 2200 to 2400 for driving around. I used a RPM calculator to work out RPM at speeds. Looking for driveability & economy. This will not be an off-roader. I have to drive it 1900 miles to Utah next year for speed week.
I have been reading threads on cams but they are falcon/mustang builds. Not sure what cam to get considering the bigger tires.

Edit to add for clarification. This is not my vehicle I am building the engine for my friend. I will be driving/passengering it for the trip to Utah next year if it all works out..

 

[bmbm40]

Must be a 200 six swap into an early v8 Bronco? That was what they used to call the rv cam in Clifford catalog. Maybe Clifford still has them.

 

[ActionYobbo]

As far as I know it had a 170 that was taken out for a v8 swap then it’s been some ones project for 30 years now my friend has it and wants me to build a 200 or 250 if one can be found. I figured I would start with a cam and build the motor around it

 

[aussie7mains]

Going to be starting to build a 200 for a bronco. 30 inch tires. 3.55 differential. C4 auto. I predict most of the engines use will be from idle to 3000 with 2200 to 2400 for driving around. I used a RPM calculator to work out RPM at speeds. Looking for driveability & economy. This will not be an off-roader. I have to drive it 1900 miles to Utah next year for speed week.
I have been reading threads on cams but they are falcon/mustang builds. Not sure what cam to get considering the bigger tires.

A good stock one!

 

[bmbm40]

As far as I know it had a 170 that was taken out for a v8 swap then it’s been some ones project for 30 years now my friend has it and wants me to build a 200 or 250 if one can be found. I figured I would start with a cam and build the motor around it

The six cylinder Broncos had 4:11 gears. The v8 had 3:50.
The six could be ordered with 4:56, not sure about the v8 but probably lower gears could be ordered because it was originally a farm and ranch type vehicle.
What year is this Bronco?
A 200 with a c4 will be a little underwhelming even with 4:11. 4:56 might be ok. Broncos weigh close to 4000 lbs.
I doubt if it had a 170 with the c4 originally so curious how the c4 got in there.
Does it have a Dana 30 upfront?
Some more history would be helpful before you select a motor to build.

 

[ActionYobbo]

No idea exactly what he has. It came in 2 trailer loads. He gave me the info on the drive line he wants to use and I get to put a motor and a transmission together for it. I am not into broncos but I do like my inline 6 fords.

 

[ActionYobbo]

A good stock one!

What year? Were they the same every year?

 

[pmuller9]

What year? Were they the same every year?

No, The Tech archive is showing two different cams for the 200 six and one for the 250 six.

Classic Inlines - Ford Small Inline Six Specs

 

[aussie7mains]

What year? Were they the same every year?

Seeing the tech data below, it would hardly matter, but do be aware that 200 cams in a 250 might run into clearance problems. However i think most aftermarket cams would be ground on 250 blanks. Something along the lines of a crowcams(Australia) 63651. I cannot tell you where you might get this, but surely some company in USA would have something similar.https://crowcams.com.au/product/ford-pre-crossflow-hydraulic-4

 

[ActionYobbo]

Thanks
I will see if I can find the stock 256 cam

 

[B RON CO]

Hi, I decided to use the Comp Cams 206 camshaft in my 66 Bronco. The RPM range is idle to 4,500. The other cam they offer is the 212, which bumps the RPM to 1,000-5,000. I am very happy with the 206 cam. Whatever cam you decide on, you MUST degree the cam. Good luck

 

[chad]

2 very different motors. Let us know if the 200/3.3 or 250/4.1 is chosen.
The 200 (’73/4 ina bronk) is a lill rever, 'the odd ball' 250 is a stroked 200 and
can B made into a tq-er (not like 240/300 is - my choice if having it to do again).

B Ron, U C the fella on classiceb? Name BROwN COw? lol~

 

[bmbm40]

Going to be starting to build a 200 for a bronco. 30 inch tires. 3.55 differential. C4 auto. I predict most of the engines use will be from idle to 3000 with 2200 to 2400 for driving around. I used a RPM calculator to work out RPM at speeds. Looking for driveability & economy. This will not be an off-roader. I have to drive it 1900 miles to Utah next year for speed week.
I have been reading threads on cams but they are falcon/mustang builds. Not sure what cam to get considering the bigger tires.

Based on 200 six, 3:50 gears and a C4 it is unlikely you will achieve much driveability and economy in my opinion.
At one time my 4:11 geared 30" tire Bronco had a later 200 six and the acceleration was hardly inspiring and a steep grade meant shifting into 2nd and grinding along at a tedious 30-35 mph. That is why I never drove it more than about 30 miles from home. It just did not have the driveability component.
My Bronco weighs a bit over 3800lbs with just the driver and half tank gas and I have not added a roll cage yet. So with a cage, thick rubber floor mats, full tank and a passenger probably about 4200 lbs. Mustangs were around 2600-2700 lbs equipped with a 200 and C4.

 

[chad]

the oe bias ply: 7.35 x 15 ( L78 x 15 ) optional 6.50 x 16
(or late model L78 x 15; 7.00 x 15 ) were close enuff to that
to not make a big difference I’d surmise (2 inches).
(FGR = tire, gear, transmission. Make sure the on-line calculator has all 3)
200ci = 120/85 HP ....... (diff is from change in way measured later).

Shift the 2 tire dementions around (28 and 30). Look at the chart for
.......... power / travel / higher MPGs ... ... ...
when doing so. Try’n keep it in the middle of the ’travel'
range (when switching ‘factors’ (It helped me pick a 5 speed transmis for
my 4.1L conversion and look @ what X-case (not a factor for you) to use. I
went to a 33 inch tire - but again I havea different FGR than U ... 33 x .72 x 4.11
in ‘hi’ or OD ( no x-fer case) and 33 x 401 x 411x 4.26 in 'low 4wd'.